Landing: 46d2b1f7b898

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Project / Subsystem

gcc / gccrs

Date

2026-06-29

Author

Enes Cevik

Commit

46d2b1f7b898c309bd2d61200a91bfd4c285c8ca

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: gccrs
patch_id: —
commit_hash: 46d2b1f7b898c309bd2d61200a91bfd4c285c8ca
source_type: github
headline: gccrs: intrinsic: Add size_of_val
tldr: gccrs now supports the `size_of_val` intrinsic for runtime size evaluation, including Dynamically Sized Types.
author: Enes Cevik
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • gccrs
• rust
• intrinsic
• backend
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/46d2b1f7b898c309bd2d61200a91bfd4c285c8ca
date: 2026-06-29T00:00:00.000Z

The gccrs compiler has incorporated the size_of_val intrinsic, enabling the evaluation of a value’s size at runtime. This feature extends to Dynamically Sized Types (DSTs), providing developers with a way to query memory usage dynamically. The implementation includes new handler functions and type-checking rules.